Muscular System MCQs :-
1. Anaerobic metabolism is not as efficient in producing energy as is aerobic metabolism. and the process also produces acidic waste products. This combination of less energy and the waste products contributes to fatigue.
- False
- True
2. The powerful extensors of the knee are the:
- lliopsoas
- Quadriceps
- Tensor fasciae latae
- Hamstrings
3. Skeletal muscle tissue moves the body by pulling on bones of the skeleton, making it possible for us to walk. dance, or play a musical instrument.
- False
- True
4. Fast or white fibers are large in diameter: they contain densely packed myofibrils, large glycogen reserves and relatively few mitochondria.
- False
- True
5. Each skeletal muscle fiber is controlled by a motor neuron whose cell body is located inside the central nervous system.
- False
- True
6. The iliac crest is the origin of the:
- lliacostalis cervices
- Splenius
- Quadrates labarum
- Longissimus cervicis
7. A single momentary muscle contraction is called muscle tone and is the response to a single stimulus.
- False
- True
8. If you bruised your gluteus maximums muscle, you would expect to experience discomfort when performing:
- Flexion at the knee
- Abduction at the hip
- Extension of the hip
- Raising of the arm
9. Which of the following is NOT a muscle of the rotator cuff?
- Subscapularis
- Terse minor
- Subclavius
- Supraspinatus
10. The perimysium surrounds each skeletal muscle fiber, binds each muscle fiber to its neighbor, and support capillaries that supply individual fibers.
- True
- False
11. Inflammation of the connective tissue surrounding a tendon is called:
- Strains
- Muscle cramps
- Tendinitis
- Sprains
- Bursitis
12. The bundle of collagen fibers at the end of the skeletal muscle that attaches the muscle to bone is call a(n):
- Epimysiurn
- Tendon
- Ligament
- Fascicle
13. Active sites on the actin become available for binding when:
- Actins binds to troponin
- Calcium binds to troponin
- Calcium binds to tropomyosin
- Troponin binds to tropomyosin
14. Which of the following muscles plays NO role in swallowing?
- Pterygoids
- Superior constrictor
- Stylopharyngeus
- Palatopharyngeus
15. Prolonged, involuntary, painful muscular contractions are known as:
- Bursitis
- Sprains
- Tendinitis
- Strains
- Muscle cramps
16. With aging, skeletal muscles become larger in diameter and more elastic.
- False
- True
17. There is strong evidence to show that exercise prolongs life expectancy.
- True
- False
18. The muscular systems of the human body consists of more than 700 skeletal muscles and includes all of the skeletal muscles that can be controlled voluntarily.
- True
- False
19. The ability to recover from injuries in older individuals decreases because:
- Blood flow to the muscles increases
- The amount of fibrous tissue in the muscle increases
- Satellite cells become smaller in size
- The number of satellite cells decreases with age
20. Hypertrophy is the result of muscle exercise that develops a larger number of mitochondria. a higher concentration of glycol tic enzymes and larger glycogen reserves.
- True
- False
21. With increasing age. skeletal muscle fibers become larger in diameter.
- False
- True
22. All of the following are true of the muscles of the pelvic floor EXCEPT:
- They ‘Tine-tune’ the movements of the thigh
- They extend between the sacrum and the pelvic girdle
- They form the perineum
- They encircle the openings in the pelvic outlet
23. A progressive paralysis due to the destruction of CNS motor neurons by a virus is:
- Fibrosis
- Myasthenia gravis
- Polio
- Muscular dystrophy
- Rigor mortis
24. In which of the following would the ratio of motor neurons to muscle fibers be the greatest?
- Large muscles of the arms
- Postural muscles of the back
- Muscles that control the eye
- Leg muscles
25. Skeletal muscles containing fast muscle fibers have a more extensive network of capillaries than do slow muscle fibers.
- False
- True
26. The axial muscles of the spine control the position of the:
- Head, neck and pectoral girdle
- Vertebral column and pectoral and pelvic girdles
- Head, neck and vertebral column
- Vertebral column only
27. Which of the following muscles compresses the abdomen?
- Diaphragm
- External oblique
- Rectus
- Internal intercostals